The client’s intended users, grounded in their customer evidence
Ground the study in customer evidence relevant to this decision.
Sunzu for product and design agencies
Turn the client review
into a decision.
When every stakeholder prefers a different direction, another round of opinions will not settle it. Bring audience reactions and clear reasoning to the next product or design review.
Used by
- Insights analysts
- Product managers
- UX designers
- Marketing strategists
- Copywriters
- Go-to-market leads
- Growth managers
Trusted by
Backed by
- Microsoft for Startups
- NatWest Accelerator
The work in front of you
Make the reasoning part of the deliverable.
Use study findings to support your client presentation, explain the compromises and set a clear purpose for the next round of design.
- Concept testing
Resolve a contested direction
Compare concepts against the same audience and question, then explain the trade-offs behind your recommendation.
Explore concept testing - UX testing
Give the design a research pass
Examine likely usability friction before handoff and use it to focus the next iteration.
Explore ux testing - Depth interviews
Make discovery more focused
Explore motivations and needs early so your team can take sharper questions into client and customer interviews.
Explore depth interviews
Your next study
Which direction should we recommend to the client?
Bring a real question. We’ll scope the audience, evidence and study together.
Start with what you have
Client brief
Design directions
Customer research
From research to a decision
Evidence for a client recommendation
Keep the question, the evidence and the next action connected.
Ask
Should the new experience lead with guided discovery or direct search?
Examine
Compare how each concept fits the intended audience’s goals and expectations. Include the reasons for a preference and the questions that remain.
Act
Recommend a direction with a clear rationale, then agree what the next prototype or human study should resolve.
Illustrative research brief. This is an example of how to use findings, not a completed customer study or a product screenshot.
Internal back-testing
Concept testing. Measured against a human reference.
Sunzuin minutes85%
Human expert with AIin days58%
Research, 500+ humansin months100%
Sunzu internal back-testing. Research, 500+ humans is the reference set to 100%. This is a study-specific comparison, not an overall accuracy score or a guarantee for your study.
From our customers
Relied on by global experts
Director, Consumer Insights & Strategy
In just a couple of months, over 170 of our colleagues have run over 500 studies.
We’re now directly integrating audiences into many of our research, product and marketing workflows.
Director, Global Product and Design UX Research
In a market flooded with AI-generated noise, this was the first platform that genuinely earned our trust.
By grounding its models in research principles, behavioural science, and real customer data, it delivers insights that feel credible, transparent, and actionable.
It changed our perspective on what’s possible with AI in customer research.
A few useful answers
Before your first study.
Sunzu can support the research behind a product or design recommendation. Bring a live project to discuss the study scope, audience evidence and how you plan to use the findings.
White-label deliverables and agency packaging are not specified in the current public offer. Discuss your reporting needs and commercial scope with the Sunzu team.
Sunzu creates audience characters grounded in customer evidence and enriched with a behavioural corpus. They are simulations. Use findings to explore directions and sharpen questions; lived experience, unexpected behaviour and consequential decisions still need research with real people.